| Portsmouth to Senftenberg | 655.13 mi (1,054.33 km) |
| Portsmouth to Siegburg | 361.87 mi (582.37 km) |
| Portsmouth to Siegen | 396.96 mi (638.85 km) |
| Portsmouth to Sigmaringen | 498.99 mi (803.05 km) |
| Portsmouth to Simbach am Inn | 655.14 mi (1,054.35 km) |
| Portsmouth to Simmerath | 323.43 mi (520.50 km) |
| Portsmouth to Sindelfingen | 472.55 mi (760.49 km) |
| Portsmouth to Sinsheim | 455.04 mi (732.31 km) |
| Portsmouth to Sinzheim | 435.97 mi (701.63 km) |
| Portsmouth to Sinzig | 365.38 mi (588.02 km) |
| Portsmouth to Soest | 401.47 mi (646.10 km) |
| Portsmouth to Solingen | 356.06 mi (573.03 km) |
| Portsmouth to Soltau | 488.76 mi (786.58 km) |
| Portsmouth to Sommerda | 530.80 mi (854.24 km) |
| Portsmouth to Sondershausen | 519.68 mi (836.34 km) |
